85 lines
1.9 KiB
C
85 lines
1.9 KiB
C
/*
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*
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* This example is configured for a Atmega32 at 16MHz
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*/
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#include <util/delay.h>
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#include <avr/io.h>
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#include <avr/interrupt.h>
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#include "light_ws2812.h"
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#define MAXPIX 30
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#define COLORLENGTH (MAXPIX/2)
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#define FADE (256/COLORLENGTH)
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struct cRGB colors[8];
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struct cRGB led[MAXPIX];
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int main(void)
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{
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uint8_t j = 1;
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uint8_t k = 1;
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DDRB|=_BV(ws2812_pin);
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uint8_t i;
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for(i=MAXPIX; i>0; i--)
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{
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led[i-1].r=0;led[i-1].g=0;led[i-1].b=0;
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}
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//Rainbowcolors
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colors[0].r=150; colors[0].g=150; colors[0].b=150;
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colors[1].r=255; colors[1].g=000; colors[1].b=000;//red
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colors[2].r=255; colors[2].g=100; colors[2].b=000;//orange
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colors[3].r=100; colors[3].g=255; colors[3].b=000;//yellow
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colors[4].r=000; colors[4].g=255; colors[4].b=000;//green
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colors[5].r=000; colors[5].g=100; colors[5].b=255;//light blue (türkis)
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colors[6].r=000; colors[6].g=000; colors[6].b=255;//blue
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colors[7].r=100; colors[7].g=000; colors[7].b=255;//violet
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while(1)
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{
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//shift all vallues by one led
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uint8_t i=0;
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for(i=MAXPIX; i>1; i--)
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led[i-1]=led[i-2];
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//change colour when colourlength is reached
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if(k>COLORLENGTH)
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{
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j++;
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if(j>7)
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{
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j=0;
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}
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k=0;
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}
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k++;
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//loop colouers
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//fade red
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if(led[0].r<(colors[j].r-FADE))
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led[0].r+=FADE;
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if(led[0].r>(colors[j].r+FADE))
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led[0].r-=FADE;
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if(led[0].g<(colors[j].g-FADE))
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led[0].g+=FADE;
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if(led[0].g>(colors[j].g+FADE))
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led[0].g-=FADE;
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if(led[0].b<(colors[j].b-FADE))
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led[0].b+=FADE;
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if(led[0].b>(colors[j].b+FADE))
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led[0].b-=FADE;
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_delay_ms(10);
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ws2812_sendarray((uint8_t *)led,MAXPIX*3);
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}
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}
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